Combined bolt anchor and support



Dec. 9, 1930. H. W PLEISTER v 1,783,976

COIBINED BOLT ANCHOR AND SUPI ORT Filed Feb. 7. 192a s Sheets-Sheet 1 2 I 4 7 6 8 a g 5 mg W 4% INV%TOR; I

Deg. 9, 1930. H w. PLEISTER ,9

COMBINED BOLT ANCHOR AND SUPPORT Filed Feb. 7, 1928 s Sheets-Sheet 2 fig- T I wrok.

Dec. 9, 1930. H w. PLEISTER COIBINED BOLT ANCHOR AND SUPPORT Fil ed Feb. 7, 192a 3 Sheets-Sheet 5.

V I .,I VENTOR. 42 W M.

:ZBY E I I g ATTORNEY t terial, usually fireproof'material such as concrete, terracotta, brick, stone or any similar materiaL-and the expansibleshield 1, of the desired size and capacity for the particular job, is inserted within the hole 13 until the head members 44: contact with the surface 12 of the wall or other suitable support. The end 7 of the nail or expanding member is then, placed within the throat j5land the head 8 is driven, by any suitable tool as by ahammer,

7 until the stop, collar or false head 9 is brought 2 into contact with the head members te-t when further longitudinal movement inthe shield is prevented; Thislongitudinal move V the portion 15 of the shankvlying between the ment of the expanding member insures that point 7 and the stop or-collari9'will expand the shield las shown in'Fig. 5, the end 7 of the nail being preferably forced throughthe slot 8 so as to obtain a secondary expansion of the a bent portions 16-16gas shown in Fig. ,5. This leaves the head 8 and the projecting shank 11 on the exterior of the Wall orlother suitable.

' support so that they purposes.

maybe used' 'for Various Ihave'shown in Figs. 7 and8 abridlering fastening, which is thesame as that just de- -scribed, and on the projecting shank 11, be-

- f-possible to tell exactly along what lines future' business may grow, throwing an ad-di-.

shown in Fig. 7.

tween the head 8 and the stop, collaror; false 30; vided with *hooks'18 and 19; the hook 119 is adapted to a be 1 sprung over the head 18 *as- In this figure the dotted head-9, is mounted'abridle ringf 1'1 proposition of th'ehook19 shows its position before being sprung overjthe head 8. e Tle-.

phone or telegraph wires" 20.'20," usually termed bridle wires, are "supportedby-the bridlering17;' p 1 i In Figs; 9 'and 101 have showna cable clamp fastening in which the expansion shown in Figs. 1 'to 6i'semployed to holdthe 1' 'cable clamp 21 to the face-12 of the'wall or other suitable support '14, the cable 22 1 supported in the usual manner.

b lies On the originalinstallation of the cable clamp the bridle ring 17 may, or may not,be

V "employed; Ordinarily it would not be em- I ployed because the cable 22 would take all the 'trafiic load at the time of the 'installation of the cable. It is often'diflicult and almost im- ,tional and excessive *trafic load "uponthe cable 22am onewhichit could not acconnnofdate," not being of sufficient jca'pacity.

'. Itather than take this cable 22do wnand install an additionalandlarger cable, it would ,beavery easy m attert0 support: bridle rings,

such as:17, upon the previously installed expansions 'holdingcthe cable clamp lsofthatf a i suflicientl'numberiolf bridle wires 20 -20 may besupported by thebri-dlering to carry the additional 7 traffic load, which I the cable 22" is unable to accommodate. Ofjcourse in some cases the bridle ring may be installed "reduced from thatin'the other figures. o

In modern office and apartment buildings having fireproof floors it is very difficult to secure a carpet "or any otherofrom of floor covering on; the floor and insure that it, will stay in the position placed. In Fig. 12 I haveshown a'vertical section of'such a fireproof floor'in which my expansion is mount -ed,.the. protruding shank 11 being some what-reduced so that the head 8 of; the nail doesnot extend up further from the floor than. necessary'to'cooperate' and removably holdithe carpetor other floor covering-25, which is preferably.provided-with an eyelet 26, the: eyelet being received, on the shank 11 between the head. 8

and the collar, stop or false head 9. g i

lpIn Figures 13-to '16 I truding shankuis bent-to form a hook, the entire expanding member being a drive ring or .hook. *In these figures the sexpan'sible shield 1' is preferably, thoughnot necessarily,

thesame as that showni in Fig. 1 of thedrawings, but the expanding member is a. drive ring or hook'having a shank.27,a stop, collar or. false head 28, a head 29preferably formed: by pressing .or,. swaging thezdri-veringor hook; the otheraportion ofi'theexpanding memberis extended beyond the head 29 and 'bentfto' forma' ring'jor hook30. Byblows of a hammer exerted uponthe head 29 the 1 drive ring-or hook-will be driven into the expansible shieldr l until the false head," collar is preventedf This will then leave the hook 30 exposed on the outer portion of the-wall where it maybe used tosupport bridle'wires, or. used as a coat-hanger, port-any. suitable obje'ct. ,r

55 0 0,s'u V V .115 I have ShOWnin'FigS- 'and'16 a drive rin v have a modification of my invention in which the. pro

onstop 28 engages with the head members i *whe'ni further longitudinal movement.

orhook"assistinginsupporting abracket 31 which in turn -supportsashelf 32. Theflower expansion shown'in Fig. l5 isthe same as J that shown in "Fig.113, xcept that the hook is bent so as to obtaina secondary support at 33; on the surface 12 of the wall *orother suitable; support 14. In this, view 15 the hook is. meant to *be used asra coat-hanger, though of coursefit could be used to support other objects. The upper fa'st ening shown in Fig, 15 is the same'asthat shown in Fi 1 to 6 of-the drawings, the protruding sharfix 11 being adapted to support-any. object that may be desired to behung on'it'. r 

